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Technical Data Sheet
PartsTable / COMPONENT / AC540
AC540 ✓ Verified by PartsTable
— · TAPERED BEARING
WHAT YOU NEED TO KNOW
Cup and cone sold separately — confirm both needed Timken series numbers indicate dimensions
Cup and cone NOT sold as set — verify order
PRODUCT OVERVIEW

The BEARING,BALL,AIRFRAME is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, bore_diameter: 0.8750 INCHES NOMINAL IN, load_direction: RADIAL, inner_ring_width: 0.2810 INCHES NOMINAL IN, outer_ring_width: 0.2500 INCHES NOMINAL IN, style_designator: SINGLE ROW, TORQUE TUBE TYPE, W/OR W/O CLOSURE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-142-4329, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
AC540
NSN: 3110-00-142-4329
FSC: 3110
CAGE: 21760 — SCHATZ BEARING CORPORATION DBA SCHATZ BEARING CORP (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
bore_diameter0.8750 INCHES NOMINAL IN
load_directionRADIAL
inner_ring_width0.2810 INCHES NOMINAL IN
outer_ring_width0.2500 INCHES NOMINAL IN
style_designatorSINGLE ROW, TORQUE TUBE TYPE, W/OR W/O CLOSURE
overall_outside_diameter1.3125 INCHES NOMINAL IN
lubrication_material_document_and_classificationMIL-G-23827 MIL SPEC SINGLE MATERIAL RESPONSE
NSN3110-00-142-4329
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: AC540 · OEM ⚠ VERIFY BEFORE ORDERING Cup and cone sold separately — verify you are ordering BOTH parts or the correct component. Always replace cup and cone together — mismatched wear = premature failure ✓ BROKER TIP Taper angle determines axial load capacity. Steeper angle = higher axial load rating. Timken series numbers indicate dimensions — cross-reference carefully PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
LOAD DIRECTION: RADIAL
•
OUTER RING WIDTH: 0.2500 INCHES NOMINAL IN
•
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATION: MIL-G-23827 MIL SPEC SINGLE MATERIAL RESPONSE
•
INNER RING WIDTH: 0.2810 INCHES NOMINAL IN
•
BORE DIAMETER: 0.8750 INCHES NOMINAL IN
•
OVERALL OUTSIDE DIAMETER: 1.3125 INCHES NOMINAL IN
•
STYLE DESIGNATOR: SINGLE ROW, TORQUE TUBE TYPE, W/OR W/O CLOSURE
•
MATERIAL: STEEL CORROSION RESISTING OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
LOAD DIRECTIONRADIAL
OUTER RING WIDTH0.2500 INCHES NOMINAL IN
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATIONMIL-G-23827 MIL SPEC SINGLE MATERIAL RESPONSE
INNER RING WIDTH0.2810 INCHES NOMINAL IN
BORE DIAMETER0.8750 INCHES NOMINAL IN
OVERALL OUTSIDE DIAMETER1.3125 INCHES NOMINAL IN
STYLE DESIGNATORSINGLE ROW, TORQUE TUBE TYPE, W/OR W/O CLOSURE
MATERIALSTEEL CORROSION RESISTING OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 24
176002Interchangeable
interchangeable cross-reference
interchangeable
480-9511Interchangeable
interchangeable cross-reference
interchangeable
A540Interchangeable
interchangeable cross-reference
interchangeable
9521Interchangeable
interchangeable cross-reference
interchangeable
7022450Interchangeable
interchangeable cross-reference
interchangeable
00970Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AC540?
AC540 is a BEARING,BALL,AIRFRAME.
What parts can replace AC540?
There are 24 known substitutes for AC540: 176002, 480-9511, A540 and 21 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AC540?
AC540 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-142-4329. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026